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Posted to yarn-issues@hadoop.apache.org by "Vrushali C (JIRA)" <ji...@apache.org> on 2017/05/10 04:27:04 UTC
[jira] [Assigned] (YARN-6435) [ATSv2] Can't retrieve more than 1000
versions of metrics in time series
[ https://issues.apache.org/jira/browse/YARN-6435?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vrushali C reassigned YARN-6435:
--------------------------------
Assignee: Vrushali C (was: Rohith Sharma K S)
> [ATSv2] Can't retrieve more than 1000 versions of metrics in time series
> ------------------------------------------------------------------------
>
> Key: YARN-6435
> URL: https://issues.apache.org/jira/browse/YARN-6435
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Reporter: Rohith Sharma K S
> Assignee: Vrushali C
> Priority: Critical
> Fix For: YARN-5355, 3.0.0-alpha3
>
> Attachments: YARN-6435.0001.patch, YARN-6435.YARN-5355.0001.patch, YARN-6435.YARN-5355.0002.patch
>
>
> It is observed that, even though *metricslimit* is set to 1500, maximum number of metrics values retrieved is 1000.
> This is due to, while creating EntityTable, metrics column family max version is specified as 1000 which is hardcoded in {{EntityTable#DEFAULT_METRICS_MAX_VERSIONS}}. So, HBase will return max version with following {{MIN(cf max version , user provided max version)}}.
> This behavior is contradicting the documentation which claims that
> {code}
> metricslimit - If specified, defines the number of metrics to return. Considered only if fields contains METRICS/ALL or metricstoretrieve is specified. Ignored otherwise. The maximum possible value for metricslimit can be maximum value of Integer. If it is not specified or has a value less than 1, and metrics have to be retrieved, then metricslimit will be considered as 1 i.e. latest single value of metric(s) will be returned.
> {code}
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